Results 241 to 250 of about 186,820 (284)

Distance properties of finite-impulse response channels

IEEE Transactions on Communications, 2000
High-speed data communication over channels with limited bandwidth gives rise to intersymbol interference at the receiver usually resulting in a poor receiver error performance. An important parameter that determines the receiver error performance is the minimum Euclidean distance between two received sequences.
Nandana Rajatheva, Ed Shwedyk
openaire   +1 more source

Error performance of a channel of known impulse response

2000 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.00CH37100), 2005
This paper addresses the problem of blind channel equalization in the context of digital communications. Recent results have shown that certain operations applied to the source signal at the transmitter help in the blind identification and equalization of the channel at the receiver. For example, cyclostationarity is induced by multiplying the baseband
Paul D. Teal, Robert C. Williamson, Rodney A. Kennedy   +2 more
openaire   +1 more source

Channel Impulse Response Correlation in the Application of Dynamic Channel Characterization

2024 International Symposium on Antennas and Propagation (ISAP)
Indar Surahmat, Dirk Heberling
exaly   +2 more sources

Impulse Response of the HVAC Duct as a Communication Channel

IEEE Transactions on Communications, 2003
Heating, ventilation, and air conditioning (HVAC) ducts in buildings behave as multimode waveguides when excited at radio frequencies and thus, can be used to distribute radio signals. The channel properties of the ducts are different from the properties of a usual indoor propagation channel.
Pavel V. Nikitin, Daniel D. Stancil, Ozan K. Tonguz, Ariton E. Xhafa, Ahmet G. Cepni, Dagfin Brodtkorb   +5 more
openaire   +1 more source

Estimation of the sampled impulse-response of a channel

Signal Processing, 1980
Abstract The paper describes various techniques for estimating the sampled impulse-response of a noisy linear channel. The estimators are suitable for use with maximum-likelihood detection processes such as the Viterbi-algorithm detector, in applications where a digital data signal is transmitted over a channel introducing severe intersymbol ...
A.P. Clark, C.P. Kwong, F. McVerry
openaire   +1 more source

Measurement of Hydroacoustic Channel Impulse Response

Applied Mechanics and Materials, 2016
The article describes the method of determining the hydroacoustic channel impulse response using signals modulated by pseudo-random sequence. Moreover, exemplary impulse responses determined in the laboratory conditions were presented.
Ryszard Studański, Andrzej Zak
openaire   +1 more source

Channel estimation using measurement of channel impulse response

2014 ELEKTRO, 2014
Paper describes measurement of channel impulse response for instantaneous channel state information (CSI). Measurements were done in indoor environment (laboratory) at Department of Telecommunications and Multimedia, University of Zilina. Carrier frequency 2.4 GHz was used for each measurement.
Andrej Tkac, Vladimir Wieser
openaire   +1 more source

Multi-Channel Room Impulse Response Shaping - A Study

2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006
This paper addresses the usability of channel shortening equalizers known for data transmission systems for the equalization of acoustic systems. In multicarrier systems, equalization filters are used to shorten the channel’s effective length to the size of a cyclic prefix or the guard interval.
Markus Kallinger, Alfred Mertins
openaire   +1 more source

Semi-blind identification of finite impulse response channels

Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181), 2002
It is a standard result that a finite impulse response channel of length L can be uniquely identified by feeding in a known (and persistently exciting) sequence of 2L-1 consecutive data points. Equivalently, given only 2L-2 consecutive data points, the channel can be uniquely identified up to a multiplicative constant.
Jonathan H. Manton, Yingbo Hua, Yufan Zheng, Cishen Zhang   +3 more
openaire   +1 more source

NLOS Identification for UWB Based on Channel Impulse Response

2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS), 2018
The localization accuracy of ultra-wide band (UWB) system could be dramatically degraded, if the signal is propagated under non-line-of-sight (NLOS) condition. The detection of the NLOS propagation is very important to guarantee the accuracy of the UWB system.
Zhuoqi Zeng, Steven Liu, Lei Wang
openaire   +1 more source